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Average Weather in July in Hayfield Minnesota, United States

Daily high temperatures are around 80°F, rarely falling below 72°F or exceeding 89°F. The highest daily average high temperature is 81°F on July 18.

Daily low temperatures are around 62°F, rarely falling below 53°F or exceeding 71°F. The highest daily average low temperature is 62°F on July 18.

For reference, on July 18, the hottest day of the year, temperatures in Hayfield typically range from 62°F to 81°F, while on January 21, the coldest day of the year, they range from 9°F to 23°F.

Average High and Low Temperature in July

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in July

Average Hourly Temperature in July in Hayfield18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMJunAugNowNowcoolcomfortablecomfortablewarmcoolcool
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Log, Russia (5,483 miles away); Zangakatun, Armenia (6,093 miles); and Talghar, Kazakhstan (6,388 miles) are the far-away foreign places with temperatures most similar to Hayfield (view comparison).


The month of July in Hayfield experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 34% to 29%. The lowest chance of overcast or mostly cloudy conditions is 29% on July 27.

The clearest day of the month is July 27, with clear, mostly clear, or partly cloudy conditions 71% of the time.

For reference, on February 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, while on July 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.

Cloud Cover Categories in July

Cloud Cover Categories in July in Hayfield1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAugFeb 640%Feb 640%Jul 166%Jul 166%Jul 3171%Jul 3171%Jul 1169%Jul 1169%Jul 2170%Jul 2170%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.


A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Hayfield, the chance of a wet day over the course of July is gradually decreasing, starting the month at 41% and ending it at 37%.

For reference, the year's highest daily chance of a wet day is 43% on June 8, and its lowest chance is 9% on February 12.

Probability of Precipitation in July

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).


To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during July in Hayfield is essentially constant, remaining about 3.8 inches throughout, and rarely exceeding 6.4 inches or falling below 1.5 inches.

Average Monthly Rainfall in July

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.


Over the course of July in Hayfield, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 48 minutes, implying an average daily decrease of 1 minute, 37 seconds, and weekly decrease of 11 minutes, 16 seconds.

The shortest day of the month is July 31, with 14 hours, 36 minutes of daylight and the longest day is July 1, with 15 hours, 24 minutes of daylight.

Hours of Daylight and Twilight in July

Hours of Daylight and Twilight in July in Hayfield1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrJunAugnightnightdaydayJul 115 hr, 24 minJul 115 hr, 24 minJul 3114 hr, 36 minJul 3114 hr, 36 minNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month in Hayfield is 5:33 AM on July 1 and the latest sunrise is 26 minutes later at 5:59 AM on July 31.

The latest sunset is 8:57 PM on July 1 and the earliest sunset is 22 minutes earlier at 8:35 PM on July 31.

Daylight saving time is observed in Hayfield during 2020, but it neither starts nor ends during July, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:28 AM and sets 15 hours, 28 minutes later, at 8:57 PM, while on December 21, the shortest day of the year, it rises at 7:42 AM and sets 8 hours, 54 minutes later, at 4:36 PM.

Sunrise & Sunset with Twilight in July

The solar day over the course of July. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.


We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Hayfield is increasing during July, rising from 30% to 38% over the course of the month.

The highest chance of a muggy day during July is 40% on July 20.

For reference, on July 20, the muggiest day of the year, there are muggy conditions 40% of the time, while on November 14, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in July

Humidity Comfort Levels in July in Hayfield1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%10%20%30%40%50%60%70%80%90%100%JunAugJul 2040%Jul 2040%Jul 130%Jul 130%Jul 3138%Jul 3138%Jul 1137%Jul 1137%NowNowoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.


This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Hayfield is decreasing during July, decreasing from 9.6 miles per hour to 8.5 miles per hour over the course of the month.

For reference, on March 22, the windiest day of the year, the daily average wind speed is 13.1 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 8.5 miles per hour.

Average Wind Speed in July

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Hayfield throughout July is predominantly from the south, with a peak proportion of 41% on July 1.

Wind Direction in July

Wind Direction in July in Hayfield1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JunAugNowNowwestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Hayfield typically lasts for 5.3 months (161 days), from around April 24 to around October 2, rarely starting before April 5 or after May 13, and rarely ending before September 16 or after October 18.

The month of July in Hayfield is reliably fully within the growing season.

Time Spent in Various Temperature Bands and the Growing Season in July

Time Spent in Various Temperature Bands and the Growing Season in July in Hayfieldgrowing seasongrowing seasongrowing season1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAug100%Jul 16100%Jul 16NowNowcoldcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Hayfield are rapidly increasing during July, increasing by 618°F, from 941°F to 1,560°F, over the course of the month.

Growing Degree Days in July

The average growing degree days accumulated over the course of July, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Hayfield is essentially constant during July, remaining within 0.2 kWh of 6.8 kWh throughout.

The highest average daily incident shortwave solar energy during July is 7.1 kWh on July 3.

Average Daily Incident Shortwave Solar Energy in July

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.


For the purposes of this report, the geographical coordinates of Hayfield are 43.891 deg latitude, -92.848 deg longitude, and 1,322 ft elevation.

The topography within 2 miles of Hayfield is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 1,327 feet. Within 10 miles is essentially flat (256 feet). Within 50 miles contains only modest variations in elevation (774 feet).

The area within 2 miles of Hayfield is covered by cropland (99%), within 10 miles by cropland (99%), and within 50 miles by cropland (91%).

Data Sources

This report illustrates the typical weather in Hayfield year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Hayfield.

For each station, the records are corrected for the elevation difference between that station and Hayfield according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Hayfield is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Hayfield and a given station.

The stations contributing to this reconstruction are: Dodge Center Airport (57%, 14 kilometers, north); Austin Municipal Airport (23%, 26 kilometers, south); and Rochester, Rochester International Airport (20%, 29 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.


The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.